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Home >> Kia >> 2012 >> Soul ! >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 3) - 2.0L >> DTC P0300: Random/Multiple Cylinder Misfire Detected >> Inspection/Repair >> System Inspection >> Timing Inspection

Timing Inspection

  1. Set up an oscilloscope as follows:

    Channel A (+): Signal terminal of the CMPS #1(back probe), (-): ground

    Channel B (+): Signal terminal of the CKPS(back probe), (-): ground

  2. Start the engine and check for signal waveform compared with reference waveform as below.
    Fig 1: Display - CKPS 60 Signal And CKPS 3-5 Signals Between Switching Point Of CMPS No. 1 And Missing Tooth Of CKPS
    G08334268Courtesy of KIA MOTORS AMERICA, INC.
    1. There are 60 signals of CKPS(Including missing tooth) during the semi-cycle of CMPS #1.
    2. There are 3~5 signals of CKPS between the switching point of CMPS #1 and the missing tooth of CKPS.
  3. Is the signal waveform normal?

    YES 

    • Go to next step as below.

    NO 

    • Repair or readjust as necessary, if air gap of the CKPS is exceeds specification[0.3~1.7 mm (0.012~0.067 in)]. If OK, check that the crankshaft and camshaft are correctly aligned the matching marks of the pulleys. Repair or readjust as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
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